NASA Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Imagery of Hurricane Katrina

Seventeen days after Hurricane Katrina flooded New Orleans, much of the city is
still under water. In this pair of ASTER images the affected areas can clearly
be seen. The top image mosaic was acquired in April and September 2000, and
the bottom image was acquired September 13, 2005. The flooded parts of the
city appear dark blue, such as the golf course in the northeast corner, where
there is standing water. Areas that have dried out appear light blue gray,
such as the city park in the left middle. On the left side of the image, the
failed 17th street canal marks a sharp boundary between flooded city to the
east, and dry land to the west. The images cover an area of 10.4 x 7.1 km and
are centered near 30 degrees north, 90.1 degrees west.

[Summary provided by NASA/JPL.]